The Blog

SNASM2 ISA Card on a Pentium-class Motherboard

Nix McRetro // 26th June 2013 // Devkit, Programming, Sega

Turns out I can get the SNASM2 card behaving on this Pentium-class motherboard by disabling the CPU’s internal cache through the BIOS. Why? I have no idea! This was a workaround for this particular PC and development-card combination. I never established the underlying reason, so I would not treat “disable... Continue reading

ISA / VLB Video Card VRAM Mayhem and a RetroPC Update

Nix McRetro // 26th June 2013 // IBM PC, YouTube

Good to see I got nowhere with this, another dead video card is all I ever seem to have! :D Continue reading

Doom 1.666 Gravis UltraSound vs Sound Blaster 32 (AWE32 Based)

Nix McRetro // 19th June 2013 // IBM PC, YouTube

Credit goes out to id Software for making such a great shooter! Also, my video card doesn’t seem to be doing such a good job… but when the music is this good, who needs video! Sound effects were muted so the pure joy of these two cards could be enjoyed.... Continue reading

IntelDX4 OverDrive 100 MHz 486 Workstation and ISA Cards

Nix McRetro // 18th June 2013 // IBM PC, YouTube

What parts are currently inside? Let’s have a peek! This IntelDX4 OverDrive is running at 100 MHz, with the ISA development cards and Gravis UltraSound making it the PC side of my Sega Mega-CD setup. Related posts SNASM2 Sega Mega-CD Emulation Card on a 486DX4-100 Sega SNASM2 and CD Emulation... Continue reading

SNASM2 Sega Mega-CD Emulation Card on a 486DX4-100

Nix McRetro // 18th June 2013 // Devkit, Sega, YouTube

More tinkering with the SNASM2 and Mega-CD emulation card while connected to the Mega-CD development unit. The 486DX4-100 worked a charm with this setup after the trouble with the newer PCs. Related posts Sega SNASM2 and CD Emulation Cards with Gravis UltraSound IntelDX4 OverDrive 100 MHz 486 Workstation and ISA... Continue reading